检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

9 篇 会议

馆藏范围

9 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

6 篇 工学
- 5 篇 电气工程
- 2 篇 控制科学与工程
- 1 篇 动力工程及工程热...
- 1 篇 电子科学与技术（可...
- 1 篇 安全科学与工程
3 篇 理学
- 2 篇 数学
- 1 篇 物理学
- 1 篇 系统科学
1 篇 经济学
- 1 篇 应用经济学
1 篇 管理学
- 1 篇 管理科学与工程(可...
- 1 篇 工商管理

主题

2 篇 optimization
2 篇 power system sta...
1 篇 power grids
1 篇 type testing
1 篇 objective functi...
1 篇 system integrati...
1 篇 transients
1 篇 threshold voltag...
1 篇 sensitivity anal...
1 篇 sensitivity
1 篇 voltage
1 篇 energy storage
1 篇 exponential func...
1 篇 regulation
1 篇 routine test int...
1 篇 voltage control
1 篇 risk
1 篇 reactive power
1 篇 permanent magnet...
1 篇 low voltage

机构

1 篇 nari group corpo...
1 篇 stability techno...
1 篇 hohai university...
1 篇 school of electr...
1 篇 nari group corpo...
1 篇 state grid jiang...
1 篇 nari group corpo...
1 篇 power grid secur...
1 篇 electric power r...
1 篇 hefei university...
1 篇 information & co...
1 篇 state grid jiang...
1 篇 state grid ningx...
1 篇 guodian nanrui t...
1 篇 school of electr...
1 篇 state grid ningx...
1 篇 division of grid...
1 篇 north china bran...
1 篇 security and sta...
1 篇 power dispatch c...

作者

3 篇 zhu ling
3 篇 huang xifang
2 篇 liu fusuo
2 篇 yu wang
2 篇 xifang huang
2 篇 wang yu
1 篇 zhiyang yu
1 篇 yudong zhang
1 篇 du wenjuan
1 篇 li yang
1 篇 wang haijun
1 篇 ren bixing
1 篇 sun ning
1 篇 zi peng
1 篇 li chencheng
1 篇 zhang nan
1 篇 lao wenjie
1 篇 yunsong yan
1 篇 mingying li
1 篇 nan zhang

语言

9 篇 英文

检索条件"机构=Power Grid Security and Stability Control Technology Branch"

共 9 条记录，以下是1-10 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

Under-frequency load shedding setting method of new energy sending-end system based on improved IMQ-GWO algorithm 8

Under-frequency load shedding setting method of new energy s...

引用

2023 8th International Conference on Clean Energy and power Generation technology, CEPGT 2023

作者： Wang, Haijun Xu, Tao Li, Yang Li, Chencheng Zhu, Lin State Grid Ningxia Electric Power Co. Ltd. Ultra High Voltage Company Yinchuan China Guodian Nanrui Technology Co. Ltd. Power Grid Security and Stability Control Technology Branch Nanjing China

Aiming at the problems of low qualification rate, poor stability, and insufficient timeliness of the existing under-frequency load shedding implementation scheme at the new energy sending end, this paper proposes an under-frequency load shedding setting method for the new energy sending end system based on the improved IMQ-GWO algorithm. Firstly, considering the fluctuation of the trend of the line of the sending end system relative to the load curve of the whole network, the index system of the implementation scheme based on the under-frequency load shedding is established. Secondly, the objective function is established for the index system of the under-frequency load shedding scheme, and the under-frequency load shedding setting model is established considering the static constraints and transient constraints of the system. Then, the grey wolf optimization algorithm (GWO) is updated by using the characteristics of the IMQ function. At the same time, the individual position is adaptively updated based on the Sigmoid exponential function to better search and optimize the solution space of the problem. Finally, based on the modified IEEE39 node, the empirical analysis is carried out, and the improved IMQ-GWO algorithm proposed in this paper is used to solve the under-frequency load shedding setting model. It is proved that the proposed method is superior to other methods in terms of execution qualification rate, stability, and application timeliness. © Published under licence by IOP Publishing Ltd.

关键词： Exponential functions

来源：评论

学校读者我要写书评

暂无评论

Optimization Method for Fault Ride-Through Parameters of Energy Storage to Reduce Short-Term power Impacts Under Faults

Optimization Method for Fault Ride-Through Parameters of Ene...

引用

IEEE Conference on Energy Internet and Energy System Integration (EI2)

作者： Yudong Zhang Yu Wang Fan Tang Zhiyang Yu Jiayu Liu Xifang Huang Power Dispatch Control Center Southwest Branch of State Grid Corporation Chengdu China Security and Stability Control Technology Branch NARI-Tech Nanjing Control System Ltd Nanjing China

ISBN: (数字)9798331523527

ISBN: (纸本)9798331523534

In high-penetration renewable energy systems, voltage dips during short-circuit faults can trigger a large number of renewable energy sources to enter (Low Voltage Ride Through, LVRT) control, causing significant short-term power impacts in the system. The commissioning of new energy storage introduces additional regulation resources to the system. This paper proposes an optimization method for energy storage fault ride-through parameters to reduce short-term power impacts during faults. Based on PV output power and the charge/discharge state of energy storage, the voltage threshold for energy storage entering LVRT is optimized. Additionally, based on the voltage threshold for energy storage stations entering LVRT control and the equivalent impedance between each energy storage station and PV station, the control strategy for energy storage exiting LVRT control is optimized.

关键词： Low voltage Renewable energy sources Voltage fluctuations Optimization methods System integration power system stability Threshold voltage Regulation Voltage control Energy storage

来源：评论

学校读者我要写书评

暂无评论

Influence Pattern of VSC-HVDC grid to the power grid on the Transient stability

Influence Pattern of VSC-HVDC Grid to the Power Grid on the ...

引用

2022 Asia power and Electrical technology Conference, APET 2022

作者： Xifang, Huang Fusuo, Liu Yu, Wang Xuelian, Wu Ling, Zhu Ruitong, Liu Nari Group Corporation State Grid Electric Power Research Institute Stability Technology Branch Company Nanjing China Electric Power Research Institute of State Grid Liaoning Electric Power Co. Ltd Power Control Center Shenyang China

ISBN: (纸本)9781665453349

High voltage direct current transmission with voltage source converter(VSC-HVDC) grid-connected is an important trend in the future development of power grid. It is of great significance to reveal the influence of VSC-HVDC grid-connected on the transient stability of power grid. The external power characteristics of VSC-HVDC are equivalent to time-varying ground admittance. Based on the extended equal area criterion (EEAC), the influence of VSC-HVDC grid-connected admittance on the self-admittance and mutual admittance of synchronous generator internal potential node is studied, the quantitative relationship between the VSC-HVDC grid-connected admittance and the change of transient power angle stability margin is deduced. Based on this, the influence law of the active and reactive power on the transient stability of the power grid is quantitatively analyzed. Finally, the correctness of the conclusion is verified by simulation. © 2022 IEEE.

关键词： Reactive power

来源：评论

学校读者我要写书评

暂无评论

Calculation of Short-Circuit Current of Doubly-Fed Variable-Speed Pumped Storage Unit 5

Calculation of Short-Circuit Current of Doubly-Fed Variable-...

引用

5th IEEE International Electrical and Energy Conference, CIEEC 2022

作者： Dai, Tao Shi, Linjun Lao, Wenjie Bai, Shibin Zhu, Ling Huang, Xifang Hohai University College of Energy and Electrical Engineering Nanjing China State Grid Ningxia Electric Power Co.Ltd Power Control Center Yinchuan China Nari Group Corporation/State Grid Electric Power Stability Technology Branch Company Nanjing China

ISBN: (数字)9781665411042

ISBN: (纸本)9781665411042

The calculation of short-circuit current of doubly-fed variable-speed pumped storage unit (DFVSPSU) is studied, this paper studies the analytical expression of short-circuit current from the flux transient process. Based on the transient analysis method of three-phase short-circuit current of DFVSPSU, this paper firstly establishes the mathematical model of DFVSPSU and the transient equivalent circuits of stator and rotor when three-phase short-circuit fault occurs in the grid. The transient process of stator and rotor flux faults is analyzed, and then the expressions of steady-state and transient components of stator flux after faults are obtained. On this basis, the expression of three-phase short-circuit current of DFVSPSU is derived. Simulation verifies the accuracy of the three-phase current expression proposed in this paper. This paper studies the influence of the distance between the short-circuit point and DFVSPSU on the feedback short-circuit current under pumping operation mode, and proposes the distance of short-circuit point that can ignore the influence of feedback short-circuit current, which provides technical support for safe and stable operation of pumped storage power station. © 2022 IEEE.

关键词： Short circuit currents

来源：评论

学校读者我要写书评

暂无评论

Parameters Optimization of MMC-MTDC Piecewise Variable Rate VDCOL for power grid Transient stability Improvement

Parameters Optimization of MMC-MTDC Piecewise Variable Rate ...

引用

2021 International Conference on power System technology, powerCON 2021

作者： Huang, Xifang Yuan, Zheng Wang, Yu Zi, Peng Zhu, Ling Liu, Fusuo Nari Group Corporation/State Grid Electric Power Research Institute Stability Technology Branch Company Nanjing China North China Branch of State Grid Corporation of China Power Control Center Beijing China

ISBN: (纸本)9781665407373

ZhangBei modular multilevel converter based MTDC (MMC-MTDC) project is the first MTDC with 500 kilovolt voltage level in China. In order to solve the possible overcurrent caused by AC fault, piecewise variable rate voltage dependent current order limiter (VDCOL) is added to the outer loop control of converter station. Based on the fault ride through process of piecewise variable rate VDCOL, the influence of main parameters of piecewise variable rate VDCOL on the active and reactive power characteristics between converter station and power grid are analyzed, and the influence mechanism of the main parameters of piecewise variable rate VDCOL on power grid transient stability under different operation modes of converter station is further explained based on extended equal area criterion (EEAC). On this basis, active power judgement loop is recommended to add in VDCOL, and main parameters of piecewise variable rate VDCOL suitable for different operation of converter station are optimized and set. Finally, combined with the actual power grid simulation example, the effectiveness of the strategy optimization is verified. © 2021 IEEE.

关键词： Transients

来源：评论

学校读者我要写书评

暂无评论

Influence Pattern of VSC-HVDC grid to the power grid on the Transient stability

Influence Pattern of VSC-HVDC Grid to the Power Grid on the ...

引用

power and Electrical technology Conference (APET), Asia

作者： Huang Xifang Liu Fusuo Wang Yu Wu Xuelian Zhu Ling Liu Ruitong Stability Technology Branch Company NARI Group Corporation/State Grid Electric Power Research Institute Nanjing China Power Control Center Electric Power Research Institute of State Grid Liaoning Electric Power Co.Ltd Shenyang China

关键词： Absorption stability criteria power transmission Voltage power system stability power grids Synchronous generators

来源：评论

学校读者我要写书评

暂无评论

Risk Optimization and Sensitivity Analysis to security and stability control System with Routine Test Interval 5

Risk Optimization and Sensitivity Analysis to Security and S...

引用

5th International Conference on power and Renewable Energy, ICPRE 2020

作者： Yan, Yunsong Sun, Ning Zhang, Nan Li, Shenghu Li, Mingying Wang, Dayang NARI Group Corporation State Grid Electric Power Research Institute Power Grid Security and Stability Control Technology Branch Nanjing China Hefei University of Technology School of Electrical Engineering and Automation Hefei China State Grid Jiangsu Electric Power Co. Ltd. Information Communication Branch Nanjing China

ISBN: (纸本)9781728190266

Interconnection of bulk power systems necessitates high reliability of security stability control System (SSCS). The routine test helps reduce the risk of unavailability of the SSCS. This paper newly proposed the optimization model to decide the optimal routine test interval, and the sensitivity model with respect to the upper/lower limits of the interval. At first, the fault tree and the state space models are derived for the SSCS. Then with the objective of reducing risk (and reducing economic loss), the equality constraints of the state probabilities, and the inequality constraints of the routine test interval and the cost, the optimization model to the interval is proposed. The Lagrange multipliers are found to describe the sensitivity of the objective function with respect to the limit of the intervals. Compared with repeated calculations, the proposed models are more efficient, and can deal with multiple parameters. The numerical results are given to show the application value of the proposed models. © 2020 IEEE.

关键词： Optimization

来源：评论

学校读者我要写书评

暂无评论

Small-disturbance stability of a weakly grid-connected wind farm with multiple PMSGs dominated by the DC-link voltage dynamics

Small-disturbance stability of a weakly grid-connected wind ...

引用

作者： Du, Wenjuan Ren, Bixing Wang, Haifeng Chen, Jue School of Electrical Engineering Sichuan University Chengdu China State Grid Jiangsu Electric Power Co. Ltd. Research Institute Nanjing China Division of Grid Security and Stability Control Technology State Grid NARI Technology Development Co. Ltd. Nanjing China

This study investigates the model-free assessment of small-disturbance stability determined by the DC-link voltage dynamics in a weakly grid-connected wind farm with M permanent magnet synchronous generators (PMSGs). A reduced-order model of the PMSG wind farm is established, which is the approximate representation of the wind farm dominated by the DC-link voltage dynamics. Based on the reduced-order model, limit of small-disturbance stability of the PMSG wind farm determined by the DC-link voltage dynamics is derived. Calculation of derived stability limit does not need to have the parametric model and can be used to approximately assess the small-disturbance stability of the PMSG wind farm. Hence, the assessment made by using the derived stability limit is model-free and useful in practice when it is usually difficult to establish the parametric model of the wind farm. In addition, the derived stability limit clearly indicates and explains that when the grid connection weakens or/and the number of PMSGs increases, the DC-link voltage dynamics are more likely to cause the instability of the PMSG wind farm. In the study, an example AC grid with a grid-connected PMSG wind farm is presented to demonstrate and evaluate the model-free assessment of small-disturbance stability of the wind farm. © The Institution of Engineering and technology 2020

关键词： Permanent magnets

来源：评论

学校读者我要写书评

暂无评论

Risk Optimization and Sensitivity Analysis to security and stability control System with Routine Test Interval

Risk Optimization and Sensitivity Analysis to Security and S...

引用

IEEE International Conference on power and power and Renewable Energy (ICPRE)

作者： Yunsong Yan Ning Sun Nan Zhang Shenghu Li Mingying Li Dayang Wang Power Grid Security and Stability Control Technology Branch NARI Group Corporation (State Grid Electric Power Research Institute) Nanjing China School of Electrical Engineering and Automation Hefei University of Technology Hefei China Information & Communication Branch State Grid Jiangsu Electric Power Co. Ltd. Nanjing China

ISBN: (数字)9781728190266

ISBN: (纸本)9781728190273

Interconnection of bulk power systems necessitates high reliability of security & stability control System (SSCS). The routine test helps reduce the risk of unavailability of the SSCS. This paper newly proposed the optimization model to decide the optimal routine test interval, and the sensitivity model with respect to the upper/lower limits of the interval. At first, the fault tree and the state space models are derived for the SSCS. Then with the objective of reducing risk (and reducing economic loss), the equality constraints of the state probabilities, and the inequality constraints of the routine test interval and the cost, the optimization model to the interval is proposed. The Lagrange multipliers are found to describe the sensitivity of the objective function with respect to the limit of the intervals. Compared with repeated calculations, the proposed models are more efficient, and can deal with multiple parameters. The numerical results are given to show the application value of the proposed models.

关键词： security and stability control system risk routine test interval optimization sensitivity Type testing State space models Lagrange multipliers inequality constraint Objective function Sensitivity analysis

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共1页 << < 1 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：